The paper deals with the flow control and measurement of liquids that form droplets. An experimental investigation on the mass of the falling droplet from capillary tubes was carried out. Examples where the present study is considered useful are in the measurement of injection flow rates of fuel in a diesel engine and for flow measurement of drops from capillary tubes in medicine. In this investigation the capillary tubes used were made of brass and Bakelite material. The inner diameter of each tubes was kept constant at 1 mm and outer diameter tubes were changed from 2 mm to 5 mm in accordance with the variation in the liquid surface tension. Experiments on falling droplet of distilled water and methyl alcohol were also carried out, as the surface tension of these liquids are so very different. The experiments were performed using a visualization technique. The present paper discusses the effect of tube diameter, droplet size and physical property of liquid on the phenomena of a falling droplet.